The head of radical leftist Syriza party Alexis Tsipras speaks to supporters after winning the elections in AthensReuters

Radical left Syriza's party, who has scored an historic success in Greece's general elections, is to form a coalition government with far-right anti-austerity Independent Greeks party.

Talks with Panos Kammenos, leader of the small populist party, lasted less than an hour.

Kommenos told reporters emerging from Syriza's party headquarters: "I want to say, simply, that from this moment, there is a government. The Independent Greeks [party] will give a vote of confidence to the prime minister Alexis Tsipras."

"The prime minister will go to the president and ... the cabinet make-up will be announced by the prime minister. The aim for all Greeks is to embark on a new day, with full sovereignty."

Syriza's leader Alexis Tsipras is to receive a mandate from president Karolos Papoulias to form a government today.

His party won 149 out of the 300 parliamentary seats so it neeeded a coalition partner to secure a working majority. The Independent Greeks won 13 seats.

Earlier, Tsipras pledged to end Greece's "humiliation and pain" after the landslide win.